Chemical Engineering Thermodynamics Co-efficient of Performance (COP) of a refrigerator is the ratio of the Work required to refrigeration obtained Lower to higher temperature Refrigeration obtained to the work required Higher to lower temperature Work required to refrigeration obtained Lower to higher temperature Refrigeration obtained to the work required Higher to lower temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = nR ln (V₂/V₁) + nCv ln (T₂/T₁) is valid for Reversible isothermal volume change Heating of a substance Cooling of a substance Simultaneous heating and expansion of an ideal gas Reversible isothermal volume change Heating of a substance Cooling of a substance Simultaneous heating and expansion of an ideal gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an ideal gas, the internal energy depends upon its __________ only. Volume Temperature Molecular size Pressure Volume Temperature Molecular size Pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for Cooling of a real gas Reversible isothermal volume change Expansion of a real gas Heating of an ideal gas Cooling of a real gas Reversible isothermal volume change Expansion of a real gas Heating of an ideal gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v₁ = 1 m³ and v₂ 3 m³ ) is max imum, when the value of 'n' is 1.66 1.44 1 1.66 1.44 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Boyle's law for gases states that P ∝ V, at constant temperature & mass of the gas P ∝ 1/V, when temperature & mass of the gas remain constant P ∝ 1/V, when temperature is constant P/V = constant, for any gas P ∝ V, at constant temperature & mass of the gas P ∝ 1/V, when temperature & mass of the gas remain constant P ∝ 1/V, when temperature is constant P/V = constant, for any gas ANSWER DOWNLOAD EXAMIANS APP
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